ARP Parts and Accessories

Nuts, 12-Point, Steel, Black Oxide, 5/16 in.-18 RH Thread, Pair

Part Number: ARP-301-8323

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Nut, 12-Point, Custom 450, Black Oxide, 1/2 in.-20 RH Thread, Each

Part Number: ARP-300-8306

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Washer, Flat, Chromoly, Black Oxide, .500 in. I.D., 1.350 in. O.D., Each

Part Number: ARP-200-8703

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Nut, 12-Point, Steel, Black Oxide, 12mm x 1.25 Thread, Each

Part Number: ARP-301-8318

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Special Purpose Washer, Black Oxide, 3/8" ID - 3/4" OD, .120 Thickness, Pair

Part Number: ARP-200-8547

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Washer, Steel, Black Oxide, .375 in. I.D., .625 in. O.D., .120 in. Thick, Each

Part Number: ARP-200-8504

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Nut, 12-Point, Reduced Wrenching, Self Locking, Carbon Steel, Cadmium/Chromate, 10-32 Thread, Each

Part Number: ARP-200-8201

Not Yet Reviewed

Nut, 12-Point, Steel, Black Oxide, 3/8 in.-16 RH Thread, Each

Part Number: ARP-301-8301

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

Nuts, 12-point, Stainless Steel, Polished, 1/4-28 in. RH Thread, Pair

Part Number: ARP-400-8320

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

Washer, Flat, Chromoly, Black Oxide, .437 in. I.D., .875 in. O.D., .120 in. Thick, Pair

Part Number: ARP-200-8727

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Nut, 12-Point, Custom 450, Black Oxide, 12mm x 1.25 RH Thread, Each

Part Number: ARP-300-8308

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

Washer, Flat, Chamfer, Stainless Steel, Polished, 0.120 in. Thick, 0.375 in. I.D., 0.750 in. O.D., Pair

Part Number: ARP-400-8527

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Nuts, 12-Point, Steel, Black Oxide, 3/8 in.-16 RH Thread, Pair

Part Number: ARP-301-8321

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Nuts, Hex, Steel, Black Oxide, 3/8 - 24 in., Pair

Part Number: ARP-200-8624

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

Nut, Hex, Custom 450, Black Oxide, 3/8 in.-24 RH Thread, Each

Part Number: ARP-200-8604

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

Thermostat Housing Bolts, Black Oxide, 12-Point, Chevy, Small Block, LS1/LS6, Kit

Part Number: ARP-134-7401

Not Yet Reviewed

Estimated Ship Date: Tomorrow

LOCK NUT

Part Number: ARP-400-8210

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

• Special Order

Washer, Flat, Chromoly, Black Oxide, .472 in. I.D., 0.750 in. O.D., .120 in. Thick, Set of 10

Part Number: ARP-200-8760

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Special Purpose Washer, Black Oxide, 9/16" ID - 1" OD, .120 Thickness, Each

Part Number: ARP-200-8515

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Thermostat Housing Bolts, Polished Stainless, Hex, Pontiac, Set

Part Number: ARP-490-7402

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Coil Bracket Bolt, Hex Head, Steel, Black, Chevy, Small Block, Pair

Part Number: ARP-130-2302

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Nut, Hex, Stainless Steel, Polished, 7/16-20 in. Thread, Each

Part Number: ARP-400-8605

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Nuts, Hex, Chromoly, Black Oxide, 3/8 in.-16 RH Thread, Set of 5

Part Number: ARP-200-8654

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

Nuts, Hex, Chromoly, Black Oxide, 1/4 in.-20 RH Thread, Set of 5

Part Number: ARP-200-8651

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

Nut, 12-Point, Steel, Black Oxide, 7/16 in.-20 Thread, Pair

Part Number: ARP-301-8336

Not Yet Reviewed

Estimated Ship Date: Tomorrow